Today is Wisconsin’s primary election remember that you can only cast a ballot for one party in the primary. Crossover voting typically invalidates a ballot, unless a voter has indicated a party preference at the top of the ballot when filling it out. Oneida County Clerk Tracy Hartman says it’s an easy way to keep yourself safe.

Many computerized and electronic voting machines will simply reject your ballot and spit it out at you when you try to submit it, but proper absentee ballots in envelopes will simply be rejected if filled out improperly.